| 1 | /* |
| 2 | * (C) Copyright IBM Corporation 2006 |
| 3 | * All Rights Reserved. |
| 4 | * |
| 5 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 6 | * copy of this software and associated documentation files (the "Software"), |
| 7 | * to deal in the Software without restriction, including without limitation |
| 8 | * on the rights to use, copy, modify, merge, publish, distribute, sub |
| 9 | * license, and/or sell copies of the Software, and to permit persons to whom |
| 10 | * the Software is furnished to do so, subject to the following conditions: |
| 11 | * |
| 12 | * The above copyright notice and this permission notice (including the next |
| 13 | * paragraph) shall be included in all copies or substantial portions of the |
| 14 | * Software. |
| 15 | * |
| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| 19 | * THE COPYRIGHT HOLDERS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| 20 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| 21 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| 22 | * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| 23 | */ |
| 24 | |
| 25 | #ifdef HAVE_DIX_CONFIG_H |
| 26 | #include <dix-config.h> |
| 27 | #endif |
| 28 | |
| 29 | #include "glxserver.h" |
| 30 | #include "glxutil.h" |
| 31 | #include "glxext.h" |
| 32 | #include "singlesize.h" |
| 33 | #include "unpack.h" |
| 34 | #include "indirect_size_get.h" |
| 35 | #include "indirect_dispatch.h" |
| 36 | #include "glxbyteorder.h" |
| 37 | |
| 38 | static int DoSwapInterval(__GLXclientState * cl, GLbyte * pc, int do_swap); |
| 39 | |
| 40 | int |
| 41 | DoSwapInterval(__GLXclientState * cl, GLbyte * pc, int do_swap) |
| 42 | { |
| 43 | xGLXVendorPrivateReq *const req = (xGLXVendorPrivateReq *) pc; |
| 44 | ClientPtr client = cl->client; |
| 45 | const GLXContextTag tag = req->contextTag; |
| 46 | __GLXcontext *cx; |
| 47 | GLint interval; |
| 48 | |
| 49 | cx = __glXLookupContextByTag(cl, tag); |
| 50 | |
| 51 | if ((cx == NULL) || (cx->pGlxScreen == NULL)) { |
| 52 | client->errorValue = tag; |
| 53 | return __glXError(GLXBadContext); |
| 54 | } |
| 55 | |
| 56 | if (cx->pGlxScreen->swapInterval == NULL) { |
| 57 | LogMessage(X_ERROR, "AIGLX: cx->pGlxScreen->swapInterval == NULL\n"); |
| 58 | client->errorValue = tag; |
| 59 | return __glXError(GLXUnsupportedPrivateRequest); |
| 60 | } |
| 61 | |
| 62 | if (cx->drawPriv == NULL) { |
| 63 | client->errorValue = tag; |
| 64 | return BadValue; |
| 65 | } |
| 66 | |
| 67 | pc += __GLX_VENDPRIV_HDR_SIZE; |
| 68 | interval = (do_swap) |
| 69 | ? bswap_32(*(int *) (pc + 0)) |
| 70 | : *(int *) (pc + 0); |
| 71 | |
| 72 | if (interval <= 0) |
| 73 | return BadValue; |
| 74 | |
| 75 | (void) (*cx->pGlxScreen->swapInterval) (cx->drawPriv, interval); |
| 76 | return Success; |
| 77 | } |
| 78 | |
| 79 | int |
| 80 | __glXDisp_SwapIntervalSGI(__GLXclientState * cl, GLbyte * pc) |
| 81 | { |
| 82 | return DoSwapInterval(cl, pc, 0); |
| 83 | } |
| 84 | |
| 85 | int |
| 86 | __glXDispSwap_SwapIntervalSGI(__GLXclientState * cl, GLbyte * pc) |
| 87 | { |
| 88 | return DoSwapInterval(cl, pc, 1); |
| 89 | } |